Granted Patent
Utility
US 4,226,380 · App. 06/007,522
Fabric unrolling device
Inventor:
John W. Gay
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Jan 29, 1979
Inventor
John W. Gay
Assignee (at issue)
Phillips Petroleum Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.